Deep fryer



FIG. 1 is a perspective view of a deep fryer showing my new design;

FIG. 2 is a front view thereof

FIG. 3 is a left side view thereof,

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in FIG. 7 is environmental structure that forms no part of the design. 

The ornamental design for a deep fryer, as shown and described. 